David Sundstrand (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "David Sundstrand" in English language version.

refsWebsite

Global rank English rank

2patents.google.com

1,182^nd place

725^th place

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7^th place

1web.archive.org

1^st place

1^st place

low place

low place

1hsassociation.org

low place

low place

1retrocalculators.com

low place

low place

1fundinguniverse.com

1,333^rd place

957^th place

fundinguniverse.com

Sundstrand Corporation Company History;In 1914 David Sundstrand, Oscar's brother and an employee at the Rockford Milling Machine Company, developed a ten-key adding machine.

hsassociation.org

Rockford Tool Company 1905

nytimes.com

New York Times:OSCAR SUNDSTRAND, INVENTOR, DIES AT 82;January 6, 1972

patents.google.com

retrocalculators.com

Retrocalculators;Sundstran adding machine

schoepski.com

History of Sundstrand machine tool corporation

web.archive.org

The Golden Age of Mechanical Calculators;The Evolution of the Modern Calculator Keypad